CN209388828U

CN209388828U - A kind of toroidal transformer

Info

Publication number: CN209388828U
Application number: CN201920201339.6U
Authority: CN
Inventors: 蒋远红
Original assignee: Shenzhen Emeilong Technology Co Ltd
Current assignee: Shenzhen Emeilong Technology Co Ltd
Priority date: 2019-02-15
Filing date: 2019-02-15
Publication date: 2019-09-13
Anticipated expiration: 2029-02-15

Abstract

The utility model discloses a kind of toroidal transformers, including primary coil, secondary coil, iron core and cooling water channel, uniform winding has primary coil and secondary coil on the iron core, and retention bead is evenly arranged on the outside of the two sides iron core of primary coil and secondary coil, the two sides of the iron core are mounted on pin, middle position on the outside of the iron core is fixed with cooling water channel, and cooling tube is evenly arranged on the outside of cooling water channel, the outside uniform winding of the iron core has high strength enamelled wire.The utility model prevents dust from entering inside transformer by being equipped with upper fixed ring, lower fixed ring and high strength enamelled wire, upper fixed ring and lower fixed ring pass through fixture block and card slot composition snap-in structure, prevent dust on the inside of iron core from entering inside transformer, and high strength enamelled wire is wound on the outside of transformer can prevent dust from entering transformer on the outside of iron core, achieve the purpose that dust-proof.

Description

A kind of toroidal transformer

Technical field

The utility model relates to transformer technology field, specially a kind of toroidal transformer.

Background technique

Transformer is the element of voltage of transformation, and in practical applications, we usually need to change the voltage of alternating current, with suitable A variety of different needs are answered, for example, the alternating current that large-scale generator issues is pressed with tens of thousands of volts, long distance power transmission needs hundreds of thousands to lie prostrate High voltage, the household electrical appliance such as electric light, electric cooker, computer need the voltage of 220V, and the filament of general electron tube only needs 3V's Low-voltage etc., this just needs to be obtained suitable various voltages with transformer, and toroidal transformer is annular, is more common Transformer, but there are many problems or defects for existing toroidal transformer.

First, traditional toroidal transformer cannot sufficiently radiate, and the coil in transformer can be generated when there is electric current to pass through Magnetic field, a part of electric energy translate into thermal energy, cause the temperature of transformer to increase, it is easy to cause transformer by high electrical breakdown And cause failure.

Second, traditional toroidal transformer cannot prevent dust from entering inside transformer, once accumulating a large amount of dusts, can make The fever condition for obtaining transformer does not become and radiating condition is deteriorated so that transformer temperature increases.

Third, traditional toroidal transformer cannot shield outside electromagnetic interference well, so that transformer is dry by electromagnetism It disturbs, influences the job stability of equipment.

Utility model content

The purpose of this utility model is to provide a kind of toroidal transformer, with solve it is mentioned above in the background art cannot Sufficiently heat dissipation, the problem of dust cannot being prevented to enter inside transformer, outside electromagnetic interference cannot be shielded well.

To achieve the above object, the utility model provides the following technical solutions: a kind of toroidal transformer, including primary line Circle, secondary coil, iron core and cooling water channel, uniform winding has primary coil and secondary coil, and primary line on the iron core It is evenly arranged with retention bead on the outside of the two sides iron core of circle and secondary coil, the two sides of the iron core are mounted on pin, institute It states the middle position on the outside of iron core and is fixed with cooling water channel, and be evenly arranged with cooling tube on the outside of cooling water channel, the iron The outside uniform winding of core has high strength enamelled wire.

Preferably, the retention bead and iron core constitute weldedization structure.

Preferably, the top of the iron core is fixed with shielding case, and the bottom end of upper shielding case is welded with fixed ring, The bottom end of fixed ring is uniformly equipped with fixture block, and the bottom end of the iron core is fixed with lower shielding case, and lower shielding case Top is welded with lower fixed ring, and the top of the lower fixed ring is uniformly equipped with and the mutually matched card slot of fixture block, the fixture block Snap-in structure is constituted with card slot.

Preferably, the upper shielding case top of the bottom end sum of the lower shielding case is uniformly equipped with cooling fin, the cooling fin Equally arrange.

Preferably, the hemispherical structure of the cooling water channel.

Preferably, fixed ring and lower fixed ring structure in a ring.

Compared with prior art, the utility model has the beneficial effects that the toroidal transformer is structurally reasonable, have following excellent Point:

1, the function of sufficiently being radiated to transformer is realized by being equipped with cooling water channel, cooling fin and cooling tube, it is cold But it is passed through coolant liquid in water channel and cooling tube, the heat of transformer can be absorbed, while discharging heat by cooling fin, reaches The purpose of heat dissipation.

2, dust is prevented to enter inside transformer by being equipped with upper fixed ring, lower fixed ring and high strength enamelled wire, on Fixed ring and lower fixed ring are by fixture block and card slot composition snap-in structure, prevent dust on the inside of iron core from entering in transformer Portion, and high strength enamelled wire is wound on the outside of transformer can prevent dust from entering transformer on the outside of iron core, reach dust-proof Purpose.

3, the purpose of shielding outside electromagnetic interference, limit are realized by being equipped with lower shielding case, retention bead and upper shielding case Position protrusion is made of copper foil, and retention bead, can be by primary coil and secondary coil between primary coil and secondary coil Between common mode interference signal by retention bead back to the earth, primary coil and secondary can be made without this retention bead The coefficient of coup of coil increases, to reduce leakage inductance, upper shielding case and lower shielding case can shield the electricity from other electric appliances Magnetic disturbance.

Detailed description of the invention

Fig. 1 faces the schematic diagram of the section structure for the utility model；

Fig. 2 is the iron core overlooking structure diagram of the utility model；

Fig. 3 is the cooling tube overlooking structure diagram of the utility model；

Fig. 4 is the upper shielding case overlooking structure diagram of the utility model；

Fig. 5 is that the upper shielding case of the utility model and lower shielding case face the schematic diagram of the section structure；

In figure: 1, upper shielding case；2, primary coil；3, secondary coil；4, retention bead；5, iron core；6, pin；7, lower screen Cover cover；8, cooling water channel；9, high strength enamelled wire；10, cooling tube；11, cooling fin；12, upper fixed ring；13, fixture block；14, under Fixed ring；15, card slot.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5 is please referred to, a kind of embodiment provided by the utility model: a kind of toroidal transformer, including primary coil 2, Secondary coil 3, iron core 5 and cooling water channel 8, uniform winding has primary coil 2 and secondary coil 3, and primary line on iron core 5 The outside of the two sides iron core 5 of circle 2 and secondary coil 3 is evenly arranged with retention bead 4, and retention bead 4 and iron core 5 constitute welding one Body structure, so that this transformer device structure is more firm, the two sides of iron core 5 are mounted on pin 6, the interposition in 5 outside of iron core The place of setting is fixed with cooling water channel 8, the hemispherical structure of cooling water channel 8, convenient for be bonded on the outside of primary coil 2 and secondary coil 3, Better cooling effect is played, and the outside of cooling water channel 8 is evenly arranged with cooling tube 10, the outside uniform winding of iron core 5 has High strength enamelled wire 9, the top of iron core 5 is fixed with shielding case 1, and the bottom end of upper shielding case 1 is welded with fixed ring 12, The bottom end of upper fixed ring 12 is uniformly equipped with fixture block 13, and the bottom end of iron core 5 is fixed with lower shielding case 7, and lower shielding case 7 Top is welded with lower fixed ring 14, and the top of lower fixed ring 14 is uniformly equipped with and the mutually matched card slot 15 of fixture block 13, fixture block 13 constitute snap-in structure with card slot 15, are easily installed and dismantle, 1 top of upper shielding case of the bottom end sum of lower shielding case 7 is uniformly pacified Equipped with cooling fin 11, cooling fin 11 is equally arranged, and convenient for heat dissipation, upper fixed ring 12 and lower fixed ring 14 are tied in a ring Structure plays good dustproof effect convenient for being bonded with this toroidal transformer inside.

Working principle: in use, the iron core 5 of ring-shaped transformer is seamlessly rolled with high-quality cold-reduced silicon sheet, this Its 5 performance of iron core is allowed for better than traditional laminated core structure 5, the primary coil 2 and secondary coil 3 of ring-shaped transformer are uniform Ground is wound on iron core 5, and the magnetic line of force direction that coil generates almost is overlapped with 5 magnetic circuit of iron core, the excitation energy compared with stacked Amount and the loss of iron core 5 will reduce 25%, very securely due to ring structure iron core 5, thus reduce vibration and audio-frequency noise, upper shielding Cover 1 and lower shielding case 7 in a ring, the electromagnetic interference that it can be generated with electric appliance around shielded transformer, and retention bead 4 Between primary coil 2 and secondary coil 3, not only position-limiting action can be carried out to primary coil 2 and secondary coil 3, may be used also To reduce the coupled capacitor between primary coil 2 and secondary coil 3, upper fixed ring 12 and lower fixed ring 14 pass through 13 He of fixture block Card slot 15, which constitutes snap-in structure, can prevent extraneous dust from entering this inside transformer, and cooling tube 10 is hemispherical dome structure, can be tight Certain fixed function is played to primary coil 2 and secondary coil 3 in the outside for pasting primary coil 2 and secondary coil 3, while just The heat of grade coil 2 and secondary coil 3 absorbs the coolant liquid inside cooled pipe 10, then realizes that heat passes by cooling fin 11 It passs, rejects heat in air, sufficiently radiate.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims

1. a kind of toroidal transformer, including primary coil (2), secondary coil (3), iron core (5) and cooling water channel (8), feature Be: uniform winding has primary coil (2) and secondary coil (3), and primary coil (2) and secondary wire on the iron core (5) It encloses on the outside of the two sides iron core (5) of (3) and is evenly arranged with retention bead (4), the two sides of the iron core (5) are mounted on pin (6), the middle position on the outside of the iron core (5) is fixed with cooling water channel (8), and is uniformly arranged on the outside of cooling water channel (8) Have cooling tube (10), the outside uniform winding of the iron core (5) there are high strength enamelled wire (9).

2. a kind of toroidal transformer according to claim 1, it is characterised in that: the retention bead (4) and iron core (5) structure At weldedization structure.

3. a kind of toroidal transformer according to claim 1, it is characterised in that: the top of the iron core (5) is fixed with Shielding case (1), and the bottom end of upper shielding case (1) is welded with fixed ring (12), and the bottom end of fixed ring (12) is uniform It is equipped with fixture block (13), the bottom end of the iron core (5) is fixed with lower shielding case (7), and the top of lower shielding case (7) is welded with Lower fixed ring (14), the top of the lower fixed ring (14) are uniformly equipped with and fixture block (13) mutually matched card slot (15), institute It states fixture block (13) and card slot (15) and constitutes snap-in structure.

4. a kind of toroidal transformer according to claim 3, it is characterised in that: the bottom end sum of the lower shielding case (7) Upper shielding case (1) top is uniformly equipped with cooling fin (11), and the cooling fin (11) equally arranges.

5. a kind of toroidal transformer according to claim 1, it is characterised in that: the hemispherical knot of the cooling water channel (8) Structure.

6. a kind of toroidal transformer according to claim 3, it is characterised in that: fixed ring (12) and lower fixed ring (14) equal structure in a ring.